4ComLab1

■* ii

FortCi) CoDfffDDfffDdaDfDBenfiBoiro^

labl_organization

Sec (1)

1- Asmaa Abdelmonem Eyssa

2- Asmaa Mohamed Kamal

3- Asmaa Shaban Mahmoud

4- Basma Gamal

i *

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PART 1-MASKABLE INTERRUPTS:

File Edit Tools Options

OOOl
0002
0003
0004
0005
0006
0007
OOOS
0009
0010
0011
0012
0013
0014
0015

[ JP 500
INT
.ORG
EXX
LD D,
LD C,
OUT (
CALL
LD D,
OUT (
EXX
RETI

HA IN
. ORG
IH 1

OH

ISR

003SH

055H
03H

C) , D

WAIT
OOH

C) , D

PROG.
5000H

Lin 1 , Col

Nunn of lines: 29

0027
002S
0029
0030
0031

0027 5016 20 FD

002S 501S 10 F9

0029 501A C9

Nuiriber of errors =

JR NZ, LP2
DJNZ LP1
RET

.in 31 , Col

Nunn of lines: 31

File Simulation Rate Tools Options Help

Program location E : \D esk T op 2\N e wVasssssssssssssssssssssssma'^AS M AA
- Main registers -

a~ rw

01
02
40
FF
FF
FF

_§_ IFF_ | Next f

■ Alternate registers -■

A'
B'
C
D'
E'
H'

Tnl

FF
FF
FF
FF
FF
FF
FF J

JR NZ,t-01H

DEC A

| Clock cycles counter I 13073
Instructions counter

' Device1 rl/Op«t02H—

on 1 1 r in <? out CXXQCCQO rsoH-

l Device2 rl/Op«t03H—

on 1 1 r in (t out QCCOCCOO row"

Device 3l

pl/U port

nHp out occoccoo rooTr

' Device4 rl/O port—

0FF 1 1 r in p out (XXXXXQO r°QH~

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11-Comment of the out on port 02: the out is the rotate right of content
of the register D it represented by led.

If the light is on (represent logic (1)), if the light is off (represent logic
(0)).

If

M

Program

ain regi

~A~
B
C
D

location

sters

09
01
03
55

5L

12-if click on putton (INT)

*the out on port 02 is pause (the led not rotate at min time

the out is 80H or 40H or 20H or 10H or 08H or 04H or 02H or 01H

*the out on port 03 is 55H and after min time the out is 00H

13- The content of pc register: before click on (INT) the content is the
addresses of Instructions of the main program .

after click on (INT) the content of pc is the address of the first
instruction of interrupt program and pc content is increment by 1
(pc=pc+l) note that (the address of the next instruction in the main
program is saved in the stack) after finished from executing the
interrupt program the content of pc is the next address of the next
instruction of the main program.

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15-to become (INT) enable: we should excute the main programe at first

and the pc =5000H

by click on the reset putton the main programe excute and the (INT)is
enable

PART 2. NON-MASKABLE INTERRUPTS:

J,' H [f 1*

File Edit Tools Options

OOOl [ JP SOOOH

0002

; irJT ISR

0003

. ORG OOS6H

0004

EXX

0005

LD D, OS5H

ooo e

LD C , 03 H

0007

OUT (C) , D

0008

CALL WAIT

0009

LD D, OOH

oo 10

OUT (C) , D

OOll

EXX

OO 12

RETM

0013

; MAIN PROG.

OO 1*1

. ORG- SOOOH

0015

IH 1

Lin 1 , Col

Nurn of lines: 29J

O O 2 "7

0027 5016 20 FD

JR NZ, LP2

002S

002S SOIS lO F9

DJNZ LP1

0029

0029 SOIA C9

RET

0030

WuLmloer: o£ errors = O

003 1

Lin 31 , Col

Nurn of lines: 3~l|

Is

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II

E:\DeskTop 2\N ew\asssssssssssssssssssssssma V^S M AA
r Alternate registers

l Device1 rl/Opot t 02H—

| r in p out OQOOOCCO rrpH

l Device2 rl/Op«t03H—

on 1 1 r in p out QQQQQCCO Hbh

rl/u port

off 1 1 r in p out (ixxaixxx) n^

f in pout coooocco noFT

]

— L

File Simulation Rate Tools Options Help
Program location E : \D esk T op 2\N ew'xasss sss sssssssssssssssssrna \A,S M AA

Last instruction

M

ain reg

"a~

B
C
D
E
H

"Til

isters

rw
rw
rw
r~FF~
rTF~

A

ternate

"a 1-

B'
C
D'
E'
H'

T*1l

registers -

roo~
roo~

l~FF~
l~FF~
1 FF

Main F register

SF nr

zf nr

yf rr

hf nr

xf rr

pf nr

NF it

CF ITT

Alternate F register

f

F

f

F
F
F
F
F

r

JR NZ,t-01H

| Next | DEC A

| Clock cycles counter I 39159

| Instructions counter 4754
r 1 6-bit registers —

n>rr
rrri

FFFF

| SP I FFFD
| PC I 5015

FFFF

Special registi
Interrupt control -

Pfft rr [?f7 rr

NMI I |NT

RE-SET" |

Device 1 1I

rl/u port uzm

| r in p out QQQQQCCO HST

Device 2|

rl/u port UJH

1 1 r in t? out QQQQQCCO H^

rl/u port

off 1 1 r in ff out QQQQQCCO HcfT

Device 4

I/O port

rl/u port

off 1 1 r in p out OQCOCCCO fra"

Output Terminal

I/O port
OFF I Clear

I~ Always On Top

Is

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1-The out on port 03 is 55H at min time and the (NMI) Is disable

(INT) was disabled when (NMI) occurred this not allow the any interrupt
to execute so the (INT) Is disable, after finished from non maskable
interrupt RETN instruction allow interrupt to be enable

When Remove the RETN instruction

^^-jewHrL^i^^I^^g^

File Edit Tools Options

OOOl | JF SOOOH

— ■

0002

; INT ISR.

0003

.ORG OOSSH

OOO -*!

E3C3C

OOOS

LD ZJ , OSSH

ooo e

LD C , 03 H

000~7

OUT (C) , ZJ

ooos

CJ^LL TVTJ^IT

ooos

LZJ ZJ , OOH

oo 10

out (C) , D

OO 1 1

e^:^:

OO 12

; MAIM FROG-

OO 13

. ORG SOOOH

OO 1^1

IM 1

OO IS

E I

—

Lin 11,C

ol 4

Nljiti of lines

2S

002 e loose sois so

FD

JR. NZ, LPS

^J

002~7 OOS-7 SOIS lO

E9

DJNZ LF1

^

OOSS 0028 SOU*. C9

RET

■J

002S Wuiritier <=. :£ enters = O

1

003 O 1

H

Lin 30_ Col O

Nljiti of lines

3o|

CX30COOCO rooH-

CX3QCOOCO rooH-

axxxxxx) i

| Output Terminal

1

1 I/O port

OFF | Clear |

HI

| Always On Top

Is

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2-if remove RETN from the programe and click on (NMI)
the (INT)and(NMI)are disable and then the program stop .
RETN it allow the interrupt to be excuted (enable) .

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